申请人:——
公开号:US20030133978A1
公开(公告)日:2003-07-17
The invention provides a controlled-release pharmaceutical formulation for oral administration comprising 4-amino-6,7-dimethoxy-2-(5-methanesulfonamido-1,2,3,4-tetrahydroisoquinol-2-yl)-5-(2-pyridyl)quinazoline, or a pharmaceutically acceptable salt thereof; and a pharmaceutically acceptable adjuvant, diluent or carrier; characterized in that the formulation is adapted to release at least 50% by weight of the 4-amino-6,7-dimethoxy-2-(5-methanesulfonamido-1,2,3,4-tetrahydroisoquinol-2-yl)-5-(2-pyridyl)quinazoline, or the pharmaceutically acceptable salt thereof, after 6 hours in Apparatus 1 described in the United States Pharmacopoeia 24 (2000), pp 1941-1943, having 1 litre vessels, baskets of 40 mesh (0.4 mm apertures), a rotation speed of 100 rpm, and a dissolution medium consisting of 900 ml of 0.01 M hydrochloric acid containing 0.7% w/v sodium chloride at 37° C.
Formulations according to the invention are suitable for the treatment of BPH.
本发明提供了一种口服控释药物制剂,该制剂包含 4-氨基-6,7-二甲氧基-2-(5-甲磺酰胺基-1,2,3,4-四氢异喹啉-2-基)-5-(2-吡啶基)喹唑啉或其药学上可接受的盐;以及药学上可接受的佐剂、稀释剂或载体;其特征在于,该制剂在美国药典 24 (2000),第 1941-1943 页中描述的仪器 1 中 6 小时后,能释放出至少 50%(按重量计)的 4-氨基-6,7-二甲氧基-2-(5-甲磺酰胺基-1,2,3,4-四氢异喹啉-2-基)-5-(2-吡啶基)喹唑啉或其药学上可接受的盐,该仪器 1 具有 1 升容器、40 目(0.4 mm 孔径),转速为 100 rpm,溶解介质为 900 ml 0.01 M 盐酸(含 0.7% w/v 氯化钠),温度为 37°C。
根据本发明的制剂适用于治疗前列腺增生症。